Asjignoe op one



(No Model.)

J. EVANS.

GENTRIPUGAL SEPARATOR. No. 360,342. Patented Mar. 29, 1887.

UNITED STATss PATENT Otticao JONATHAN EVANS, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONE- HALF TO DAVID H. BURRELL, OF LITTLE FALLS, NE\V`YORK.

CENTRIFUGAL SEPARATOR.

SPECIFICATION forming part of Letters Patent No. 360,342, dated March 29, 1887.

Application filed March l0, 1886. Serial No. 104,705.

To @ZZ whom, it may concern,.-

Beit known that I, JONATHAN EVANS, of the city ofPhiladelphia, in the county ofPhiladelphia and State of Pennsylvania, have invented new and useful Improvements in Centrifugal Separators, of which the following is a specification.

My invention relates to a centrifugal separator which consists of a separating-drum secured to an upright spindle, which latter is mounted in a suspended frame in such manner that the frame is free to assume a perpendicular or more or less inclined position in adjusting itself to the center of gravity of the revolving system.

The principal object of my invention is to produce a machine of this kind which is adapted for creaming milk by centrifugal force.

My invention consists of the improvements which will be hereinafter fully described, and pointed out in the claims.

In the accompanyiag drawings, Figure 1 is l a sectional elevation of a centrifugal separator provided with my improvements. Fig. 2is a sectional elevation at right angles to Fig. l. Fig. 3 is a top plan View ofthe machine. Fig. 4 is a horizontal section in line x x, Fig. l.

Like letters of reference refer to like parts in the several figures'.

A represents the separating drum or basket, and B the vertical spindle to which the drum is secured. The machine represented in the drawings is designed for separating a compound liquid into its constituent liquids of different specific gravities, and the drum employed in this machine is therefore made tight or imperforate. The spindle B is provided at its lower end with a step, I), and near its upper end with a journal, 'b'.

C represents a pulley or band-wheel secu red to the upper end of the spindle for imparting motion to the same.

D represents the movable or self-adjusting frame, in which the spindle B is journaled. The frame embraces the separating-drum and is provided below the drum with a step-bearing, d, in which the step b of the spindle rests. The upper end of l[he frame I) is provided (No model.)

with a bearing, d', in which the journal b of the spindle turns.

F represents a spherical knuckle or journal formed at the upper end of the frame D, and G represents a concave bearing which receives the knuckle or bearing E, so that the franieD and the parts supported therein are suspended by means of the knuckle F in the bearing G. The latter is composed of a conical ring, f, which is secured to a wall-bracket,H,or other suitable stationary support. The upper bearing, d', of the spindle is securedin the knuckle F, into which it is inserted through an opening formed in the top of the knuckle.

t' represents a drip-cup secured to the spindle B below the bearing d, and I represents an annular collecting-trough, which is attached to the bearing G, and. which surrounds the drip-cup i and collects the oil or other mate rial which is thrown out of the same by the centrifugal force.

rlhe knuckle F is provided with a lug,f, which strikes against a lug, f2, on the bearing G, and whereby the frame D is prevented from rotating with the spindle by frictional contact.

The bracket H can be secured directly to the posts of the spring-house or other building in which the separator is placed. It avoids the cost of special foundations, and does not obstruct the floor-space. The spherical knuckle E is located in the upper portion of the frame D, and the point of support on lthe under side of theknuckle is located within the frame, thereby affording a steady and reliable support for the frame and drum.

K represents the feed-pipe by which the liquid to be separated is fed into the drum A. This pipe is attached to the frame D on one side of the spindle B,.and provided at its inner end with a removable nozzle, L, which depends into the drum and delivers the liquid upon the bottom of the same near the center. The feed-pipe is also preferablyprovided with a stop-cock, Z, for regulating the feed. The outer end of the feed-pipe is connected with the suppl y-pipe or reservoir by a flexible connection, which may be a section of india-rubber pipe, so that the proper connection of the feed-pipe K with the supply-pipe or reservoir is maintained in the various positions of the frame D.

M is the discharge or skimming pipe,

through which the heavy separated liquid is pipe, and is preferably made adjustable on the frame, so that its curved inner end can be nicely adjusted, in order to properly remove the heavy liquid from the drum. The discharge-pipe M delivers the heavy liquid to any suitable receptacle.

N represents the discharge-pipes through which the light liquid is discharged from the drum. As shown in the drawings, the discharge-pipes N penetrate the bottom of the drum and discharge the light liquid into an annular collecting-trough, O, which is secured to the frame D below the drum. Vhen the machine is used for creaming milk, the cream is discharged from the drum through the discharge-pipes N into the trough O, from which latter the cream flows through a dischargepipe, p, into a suitable receptacle.

The trough O is divided into halves, diametricallyA or radially, and each half is provided wit h tapering lugs o', projecting outwardly on both sides of the frame D. The two halves are drawn together by loops o2, which engage over the tapering lugs o, and screws which are secured to the frame. In order to produce a tight joint between the halves a suitable packing, o, of rubber or other suitable material, is placed between the contiguous' faces of the parts. rIhis construction permits the removal of the trough O without disturbing the spindle.

Q represents an annular shield or curb, which is secured to the frame D and surrounds the drum A.

Upon rotating the spindle B and drum A by means of an endless belt running around the pulley C, and feeding the liquid or other material to be separated into the drum, the frame D adjusts itself by means of theknuckle F and bearing G as may be necessary to establish an equilibrium of the rotating parts; hence, if the center of gravity of the rotating system should be out of center from any cause, the automatic adjustment of the frame D will compensate for this defect and avoid all injurious effects upon the machine.

In centrifugal creamers it happens occasionally that the drum becomes unbalanced by reason of an unequal deposit of solid sediment upon the inner surface of the drum. In ordinary machines, in which the spindle is supported in fixed bearings,this would cause the machine to run untrue and produce various injurious effects, such as excessive and acter herein described is therefore produced at j less expense, thereby rendering the present construction especially desirable for small machines intended to be placed within the reach' of farmers of small means.

Y The devices for feeding the drum and discharging the products of the separation therefrom may be modified in many ways, which will be obvious to persons skilled in the construction of centrifugal creamers and other similar separating machines. V

I am aware that a drumsupporting frame suspended by a spherical knuckle and connected at its lower end to supports by elastic connections is not new in centrifugal machines, and I do not claim the same.

I claim as my invention-- l. The combination, with the spindle and separating-drum, of a frame provided at its upper and lower ends with bearings in which the spindle is journaled, a universal joint by which the upper end of the frame is suspended, while the lower end of the frame is free and capable of lateral movement, and feed and discharge pipes attached to the suspended frame and supplying and removing liquid to and from the drum, substantially as set forth.

2. The combination, with the spindle and separating-drum, of a frame provided at its `upper and lower ends with bearings in which the spindle is journaled, a universal joint by which the upper end ofthe frame is suspended, while thelowercnd of the frame is free and capable of lateral movement, and a feedpipe, K, a skimming-pipe, M, and a collecting-trough,

' O, attached to the suspended frame, substantially as set forth.

3. The combination, with the frame provided at its upper and lower ends with bearings and at its upper end with a spherical suspendingknuckle, of a spindiejournaled in said bearings and passing through the spherical knuckle, a pulley secured to the spindle above the knuckle, and a drum secured to the spindle within the frame, substantially as set forth.

4. The combination, with the spindle and the separating-drum secured to the same, of a self-adjusting suspended frame provided above and below the drum with journals in which the spindle is supported, andan annular shield or curb surrounding the drum and frame and secured to the outer side of the latter, substantially as set forth.

5. The combination, with the drum, the spindle, and the frame in which the spindle IOO IIO

IZO

is journaled, of au annular collecting-trough screws o3, whereby the parts are secured to- 1o surrounding the spindle and composed of gether, substantially as set forth. separable parts, whereby the trough can be Witness my hand this 5th day of March, removed without disturbing the spindle, sub- 1886. stantially as set forth.

6. The combination, with the drum, spindle7 and the supporting-frame D, of the annu- Vtnesses: lar trough O, composed of separable parts, DARRAGH CLEAVER, provided with tapering lugs o, loops o, and R. G. KEES.

JONATHAN EVANS. 

